This is a toughy.
I would want to die the quickest and preferably least painful way.
Shot in the head would be instantaneous, no pain.
But shot in the gut, bleeding out? That could be nasty. And much more likely.
Death by bomb would probably be more likely to be instantaneous, but if it wasn't...
Multiple lacerations, bleeding out, burnt, concussed, possibly loss of limb...
It would be horrible for as long as it took you to die.
both can leave you injured and you can still recover and feel awful for the rest of your life. hopefully they're a good shooter
That's pointless to even mention though, since the scenario is that you definitely die from the shooting or bombing.